Why Are Pizza Boxes Square? (Secrets Reasons & Benefits Revealed)

Why Are Pizza Boxes Square? (Secrets Reasons & Benefits Revealed)

Why Are Pizza Boxes Square? Detailed Answer For Pizza Lover

Pizza is one of the most common dishes served in American homes, with Americans consuming approximately 350 slices per second. When you order a pizza, you usually get it delivered in a square box.

We all know that pizza boxes are square while the pizzas inside them are round.

But why aren’t pizzas round like the boxes they come in? Why Are Pizza Boxes Square? The answer may surprise you! Pizza is traditionally baked on rectangular trays and cooled on wire racks. These two factors combine to create that classic pie shape we know and love. 

Everyone eats pizza, but very few people are aware that the shape of a pizza box is based on scientific research.

It may seem strange to think about how much science goes into making something so simple as a pizza box, but it has been perfected over time and also gives insight to other packaging trends throughout history.

Why Are Pizza Boxes Square? The reason for this is that when it comes to packing, a square box offers more space than a circular one. This means you can fit three boxes in the same space as one circle-shaped box.

But why not use triangular or rectangular shaped boxes? That’s where things get even more interesting!

In this post, we’ll take a look at the history of pizza packaging and explore some of the reasons why are pizza boxes square have become so popular.

We’ll also look at some of the alternatives that have been tried over the years and see how they compare to the classic square pizza box.

So, let’s get started!

Why Is Pizza Round?

The first thing to note is that pizzas are round for a reason. We will discover this fact before deep diving into the question why are pizza boxes square.

If you want to bake a pizza to be as large as possible, using the largest tray or pan available is your best bet. Circular trays can accommodate more pizza than any other shape and this is why most pizzas are circular in shape.

Pizza is round for the following reasons:

1) Before cooking, pizza dough is formed into a ball to rise. A ball is easier to shape and stretches to an evenly thick base.

2) When chefs make a pizza, they use their dominant hand to spread out the dough with a rolling pin or toss it in the air. For this reason, they would turn the tray around 180 degrees before placing it into an oven. That makes it circular.

3) Bakers use round trays to bake the dough.

4) Pizza baking pans are circular in shape

5) It is easier to cut into equal portions when the pizza is circular.

6) The shape is iconic and popular.

7) Traditional Neapolitan pizza has set rules and must be circular.

There are many reasons why pizzas are typically circular in shape. But what about the pizza box?

Why Are Pizza Boxes Square?

So, how did boxes come to be square when most pizzas are round?

The truth is that it all comes down to efficiency in packing and cooling.

To understand this better, let’s take a look at the history of pizza packaging!

The history of the square pizza box

The first pizzas were made in Naples, Italy in the 18th century. These pizzas were round and were baked on circular trays. The pizzas were then cut into small pieces and sold by street vendors.

Let’s take a look at the history of the pizza box before we get into why are pizza boxes square.

The modern pizza box was invented in America in the early 1900s. It was designed to keep the pizza warm and prevent it from becoming soggy.

At the time, most pizzas were delivered in triangular boxes, but these boxes were difficult to stack and took up a lot of space.

In response to this problem, an American inventor named Charles G. Wagner came up with the idea of a square pizza box.

His design was based on the traditional cardboard egg carton, which is also square. Wagner’s design was a hit and soon became the standard for pizza delivery.

Over the years, the square pizza box has become synonymous with pizza delivery. In fact, many people believe that the shape of the pizza box is what determines the shape of the pizza. But this is not actually the case!

The Origins of the Square Pizza Box

Pizza boxes were not always square. They were actually round until the 1950s when a man named Frank E. Dentice decided to change their shape.

Dentice was a pizzeria owner who was looking for a way to make his pizza boxes more efficient.

At the time, most pizzas were being delivered in round boxes that took up a lot of space and could not be stacked easily.

Dentice’s Solution

Dentice’s solution was to cut the corners off of his pizza boxes so that they would stack better and take up less space. This new design allowed for more pizzas to be delivered at one time, which resulted in increased profits.

Over the next few decades, other companies began to imitate Dentice’s invention and cut their boxes’ corners off too. By the late 1970s, square pizza boxes had become standard in America.

Why Square Pizza Boxes Are Better

It may seem like round boxes would be better than square ones, but that is not the case! In fact, there are a number of reasons why the square pizza box has been widely adopted as the industry standard.

Here are some of its benefits:

1) It’s too hard to make a round box

The corners of a round box need to be folded and glued very carefully so that the lid and bottom fit together easily.

A square box, on the other hand, requires less work and can be made quickly and cheaply by simply folding it in half.

Round pizza boxes are difficult to make because the dough has to be stretched evenly to form a perfect circle. This is why most pizza boxes are now square – it’s much easier and faster to produce them in this shape.

2) Square boxes are cheaper to produce than round ones

Square boxes are much easier to make, needing only one piece of cardboard. Round boxes need a few pieces. This means that square boxes are cheaper to produce and can be sold at a lower price.

The same amount of paper can be used to make four square boxes as it can to make two round ones.

This is because the sides of a square box are straight, while the sides of a round box are curved. This also allows for more pizzas to be packed into a smaller space, making them easier to store and ship.

3) More Space Efficient

The main reason that square pizza boxes have become popular with pizzerias is that they save space.

This enables more pizzas to be delivered at one time and enhances profits for stores while ensuring pizzas reach customers quickly and remain fresh.

You can stack three or four pizza boxes on top of one another without them falling over if they’re all squares. However, try stacking round boxes together and you’ll see how difficult it is!

4) Boxes Square can hold multiple toppings

Most round pizza boxes only have enough space for one topping in each section. However, square boxes can accommodate multiple toppings with several sections on each side of the box.

This is very useful when you’re ordering a pizza with many different toppings. It means that you won’t end up with all of your ingredients on one slice!

This is part of the reason why square pizza boxes have become standard – they’re simply better for customers because they allow people to get the variety that they want.

5) Square boxes keep round pizza safer

Square pizza boxes can be packed more efficiently than round ones because they take up less space. In fact, they can even be fit into a standard-sized delivery van.

Since square boxes stack better than round ones, they help to keep pizzas fresher and prevent them from getting damaged.

For example, if you were to square box, the dry bottom of the pizza would not be able to absorb any moisture that may still remain on top of it.

This helps to prolong its shelf life and ensures that your customers receive a quality product.

6)They stay warm longer

The next benefit of square pizza boxes is that they stay warm for longer periods of time. This is because the sides of a round box allow heat to escape more quickly than the sides of a square one.

This is thanks to the fact that square boxes have more thermal mass than round ones.

Thermal mass is the ability of a material to store heat energy. In other words, the more thermal mass a material has, the slower it will cool down.

So, if you’re looking for a pizza box that will keep your pizza warm for as long as possible, go with a square one!

7) Square boxes are easier to cut 

It is easier to cut into equal portions when the pizza is in a square box. This is because the slices will be straight, rather than curved like they would be in a round box.

This is another reason why many pizzerias have switched to using square pizza boxes – they are more practical and make it easier for customers to enjoy their pizza in the way they want.

8) Stable

Square boxes are also sturdier, meaning they’re less likely to fall over when stacked. This means they can be supplied more quickly and efficiently with a lower possibility of being damaged.

This is yet another reason why pizzerias have been switching from round pizza boxes to square ones – it’s much easier to stack them and keep them safe so that the pizza inside stays fresh!

This prevents the boxes from toppling over and keeps the pizzas inside them from becoming damaged.

9) They are easier to open

Square boxes are also much easier to open than round ones. This is because they have flaps that can be easily detached, which makes them great for take-out orders.

Round boxes, on the other hand, have to be cut open, which can be quite difficult and can damage the pizza.

This is why many pizzerias have started using square boxes for their take-out orders – they are much more practical and user-friendly!

10) Square boxes fit better on shelves 

A square pizza box takes up less space on a shelf than a round one. This is because the height of a square box is the same as its width, while the height of around one is greater than its width.

This is another practical benefit of using square pizza boxes – they take up less space on shelves, meaning that you can fit more of them in the same area. This is great for stores that want to maximize their storage space!

11) They fit better in delivery vehicles

Most pizza delivery vehicles are designed to hold square boxes, which is why they are the standard shape for pizza boxes. Round boxes do not fit as well and take up more space.

This is another good reason for pizzerias to use square pizza boxes – Square pizza boxes can be easily stored in a refrigerator or freezer and transported in a truck or van.

They take up less space than round boxes and can be arranged in a column or row without leaving empty space.

This means that the pizzas inside will not get damaged during transportation and you’ll be able to deliver them safely.

12) Environmentally friendly

Square pizza boxes are made from recycled cardboard, which makes them environmentally friendly. They can also be recycled again after use, making them a sustainable option for packaging pizzas.

Round pizza boxes are not made from recycled cardboard and cannot be recycled. This is why many pizzerias have started using square pizza boxes – they are more environmentally friendly and can be recycled again after use!

There’s no way to flatten out around box and make it reusable, which means pizzerias have to buy more boxes all the time.

However, you can reuse a square box by folding it up and putting it in a storage space until you need it again. They also take up less room in a recycling bin than round ones when they are recycled at the end of their useful lives.

13) Early pizza was square

Did you know that the first pizzas were square? This is because they were cooked in an oven that was designed to cook bread, which is also square.

Early pizzas were made in a square shape to make them easier to cut and divide. This is because early pizza makers used knives to cut the pizzas, rather than today’s cutter wheels.

This might be another reason why pizzerias use square boxes for their take-out orders – they are more practical and efficient! 

The Bottom Line

As you can see, there are a number of reasons why square pizza boxes have become the industry standard. They are cheaper to produce, take up less space, and stay warm for longer periods of time.

They are also easier to cut into equal portions, making them ideal for enjoying your pizza the way you want. So next time you order a pizza, make sure it’s in a square box!

So, now you know! The next time you order a pizza, don’t be surprised if your delivery arrives in a square box!

It’s much better than round ones as it ensures that the pizzas stay fresher for longer and are delivered quickly and efficiently.

Square Pizza Boxes

So, now that we know why pizzas are round and pizza boxes are square, but why not use triangular or rectangular shaped boxes?

Let’s take a look at some of the other shapes that have been tried over the years.

Triangular Pizza Boxes

In the early days of pizza delivery, triangular boxes were the norm. These boxes were easy to stack and took up less space than square boxes. However, they were difficult to fill and often resulted in waste.

Rectangular Pizza Boxes

Rectangular pizza boxes are not as popular as square or triangular boxes because they do not fit as well into delivery vehicles or store shelves. They are also difficult to cut into equal portions, which can lead to waste.  

The Ideal Size

There has been a lot of debate over the years about the best size for pizza boxes. Obviously, it needs to be big enough to hold your pizza, but too large and it will not be able to fit into your car or fridge.

Pizza makers in Australia seem to prefer larger sized boxes (similar in size to cookie sheets). However, these are less popular with customers who find them harder to carry.

American-sized pizza boxes are the most popular around the world thanks to their smaller size that is easy for customers to handle.

So, what’s the verdict?

Square pizza boxes are the most practical and efficient shape for packaging pizzas. They fit better into delivery vehicles and store shelves, and can be easily divided into equal portions.

They are also made from recycled cardboard, making them environmentally friendly.

Round pizza boxes are not as practical and often result in waste. Square pizza boxes are the industry standard!

But Why Not Square Pizza For A Square Box Then?

Yes, you can. However, square pizzas are not as popular as round pizzas because they do not fit into pizza delivery vehicles or storage boxes very well.

You can’t really fold a square pizza the way you would fold a piece of paper, so square pizzas tend to be less versatile than their circular counterparts. This means that they often get wasted during the cooking process.

Square pizzas are also difficult to divide into equal portions. If you were to cut a square pizza in half, each piece would end up being an awkward shape that does not fit on a round slice of bread very well.

This is why most pizzerias choose to serve round pizzas in square pizza boxes – it’s the best way to ensure that your pizza arrives intact and that each customer gets an equal slice.

So, there you have it! Now you know the reasons behind the shapes of pizzas and pizza boxes. Next time you order a pizza, don’t be surprised if it arrives in a square box!

How To Reuse Old Pizza Boxes 

So, you know that square pizza boxes are the most efficient and practical option. You also know “why are pizza boxes square”.

You’ve decided to buy square pizzas instead of round pizzas for a more even distribution of toppings, but how can you reuse your old pizza boxes?

Most people quickly throw used pizza boxes into the recycling bin, thinking that they are recyclable paper products. However, this is not entirely true!

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Pizza boxes are actually made from corrugated cardboard , which means they are made up of several layers glued together with a thin layer of wax in between each layer.

Although it may look like paper on the outside, inside it’s an entirely different story!

Pizza Boxes Are Not Recyclable Paper Products

There has been a large amount of debate in recent years over whether or not you can recycle pizza boxes.

Many people think that it’s okay to throw out their old cardboard boxes because they are simply made up of paper products. However, this is actually untrue!

Pizza boxes are actually recyclable corrugated cardboard, which means they cannot be recycled with regular paper recycling methods.

This is because the thin wax lining between each layer of paper makes it difficult for standard high-speed sorting machines to separate the layers during the recycling process.

Even though the outer layer may look like traditional paper, inside there’s a thin metal (usually aluminum) sheet and several sheets of corrugated cardboard glued together with wax in between each sheet!

So, does this mean that all paper products are not recyclable? Not exactly. Most paper and cardboard products you use in your home can be recycled!

The only exception is painted and stained paper and cardboard, so make sure to avoid these types of paper before recycling them according to your local guidelines!

Some Ideas For Reusing Pizza Boxes

Here are some creative ways to reuse leftover pizza boxes:

  • Turn them into school book covers
  • Keep them for storing sensitive documents such as taxes or birth certificates
  • Cut one side down and use it as a disposable baking pan
  • Line wastebaskets with them to reduce stinky odors after garbage has been sitting for too long.
  • Cut them up and use them as packing material for shipping fragile items
  • Make a small fort out of them for your children to play in
  • Use them to store extra clothes or blankets in during the winter months
  • Glue several of them together to make a large cutting board

The possibilities are endless! As long as you’re creative, you can find a way to reuse your old pizza boxes. So don’t throw them away – think outside the box!

Why Is Pizza Cut Into Triangles?

Pizza is a flatbread-like food that is cut into trianggles slices for eating. But why are they triangles in shape? Why not squares or rectangles?

Italian immigrants brought pizza to the United States.

Pizza is a popular dish made of an oven-baked, flat dough crust covered with tomato sauce and cheese and other toppings.

It is usually cut into triangular slices for eating. The origin of this dish is uncertain, but several theories exist about how it came to be.

One theory is that the triangular shape of the pizza slice was created when it was first brought to the United States by Italian immigrants.

These immigrants came from Southern Italy, where pizza was traditionally served in a triangular fashion.

This makes sense, as Southern Italy is much closer to Greece than Northern Italy, and Greek pita bread is also triangular in shape.

Another theory is that the triangular shape of the pizza slice was actually created by the box manufacturers in order to make efficient use of cardboard and shipping space. This makes sense, as most boxes are square or rectangular in shape.

However, many experts believe that neither of these theories is accurate. They believe that the triangular slice was actually created by pizzerias who wanted to make their slices look more like the American-style pie. This makes sense, as the triangular slice is much easier to fold than a square or rectangular slice.

Pizza slices are cut in triangle shapes because that is the most common way to equally divide a circle – think of pie charts.

To ensure that every slice gets an equal share, you have to cut it from the crust through both top and bottom. Slicing a pizza into triangle pieces means that every slice gets an equal amount of toppings and dough. It would be unfair for someone only getting the crunchy parts!

If you fold three triangles together in order to make an American-style pie, it forms a much smaller surface area than if you cut it into four sections (making each piece larger). This means that more people can eat your pizza before it gets soggy! 

In addition, The New York style tends to have larger slices with foldable crusts, so this may play a part in why many pizzas are cut into triangular slices.

So, why is pizza cut into triangles? The answer to this question is still unknown, but it’s a question that has been debated for many years! Be sure to share your thoughts in the comments section below!

Why Do They Cut Pizza in Squares In Some Places?

In some places, they cut pizzas into squares instead of triangles. This may seem odd at first glance, but the reason behind it makes sense once know some background information. 

Pizza became popular in the United States during WWII, when American soldiers were first introduced to it while stationed in Italy.

Upon returning home, these same soldiers shared their new love of pizza with others, spreading its popularity throughout the country.

It wasn’t long before pizzerias began popping up all over the place; some shops stuck to the traditional style (New York Style) and others took their own spin on it (Chicago Style).

The Chicago Style generally uses thicker dough, more cheese, and often includes sausage or other additions which require cuttings that aren’t as smooth as those found in New York Style pizza. Thus, square slices emerged!

There are several other possible reasons for why square-cut pies exist. One theory postulates that pizza makers adopted the square-cut style because it is easier to share with others.

In addition, the corners of a square slice contain little or no sauce, which means you can eat them with your hands without worry!

The same theory also states that rectangular pizzas were traditionally served at home on a dinner plate alongside forks and knives – meaning they didn’t have to be cut into triangles for ease of eating.

Others claim it’s just a way of maximizing efficiency in terms of size and volume.

Whatever the reason may be, these days squares are as common as triangles when it comes to pizza slices!

We don’t think we will ever find out why exactly this happened, why are pizza boxes square, but one thing is – some people love their squares, triangles, and cutting into that pizza in a way that makes them happy!

Can cut the pizza into square slices?

The short answer is yes – but only if you want them to be! Square-cut pizza isn’t any less tasty than triangle-cut; some people prefer one type while others like another equally (or even more!).

There’s no right or wrong way to enjoy your pizza (after all, it seems like every country has a different way of enjoying it), so go ahead and cut it however you’d like before sinking your teeth into that cheesy goodness.

Variations On The Traditional Pizza

Today, many different styles of pizza exist – and there’s no limit as to what kind you can create on the way learning “why are pizza boxes square”! Here are just a few examples:

Greek Pizza: Greek pizza is often topped with Greek-style ingredients such as spinach, tomatoes, olives, feta cheese and garlic. They may also include traditional Italian toppings like pepperoni and sausage.

Chicago Deep Dish Pizza: Unlike other pizzas which have thin crusts folded over their toppings, Chicago deep dish pizzas have shallow crusts that are pressed into pans by industrial machines.

This leaves small bowls or walls that hold the melted cheese in place. In addition, the dough contains cheese before baking – leaving you with a tasty surprise when take your first bite! 

Detroit-Style Pizza: Detroit-style pizzas are known for their thick, deep dish crusts and caramelized sauce which is made with sugar and tomatoes.

This style of pizza is said to have been created by Sicilian immigrants who moved to Detroit in the early 1900s.

Pizza on a Stick: Yes, you read that correctly! Pizza on a stick is an increasingly popular dish that can be found at fairs and festivals all over the United States.

It’s made by taking traditional pizza toppings (sauce, cheese, pepperoni, etc) and wrapping them around a skewer before baking. Voila – pizza on a stick!

Is there anything more comforting than biting into a slice of warm, cheesy pizza? Whether you prefer it thin and crispy, deep dish style, or on a stick – pizza is one of those foods that almost everyone loves!

Even if you don’t like the ingredients listed above, chances are you still enjoy eating pizza now and then. Some people can say they’ve never tried it at all, but hey – there’s always room for more flavor in your life!

What is your favorite style of pizza? What topping would you put on it? And what do you think about”why are pizza boxes square”? Share your thoughts with us below!

How To Make A Perfect Pizza At Home

After having a deep understanding about “why are pizza boxes square”, we will learn how to make a perfect pizza & then put them into a square box.

Making pizza at home is a great way to control the ingredients – and have a delicious meal that’s also inexpensive. But if you want the perfect pie every time, here are a few things you’ll need:


You can buy dough from almost any grocery store, or pick some up from your local pizzeria.

If you’re baking during summer months, keep in mind that yeast ferments faster when it’s warm – so be sure to store it in an airtight container or proofing basket with a damp towel covering it!


Many people opt for jarred marinara sauce instead of making their own – but feel free to make your own if you’d like!

Just make sure the tomatoes are the only ingredient listed on the label, otherwise you’ll end up with a watery mess.


A great pizza needs mozzarella – but not all mozzarella is created equally! Buy fresh mozzarella if you can find it or use shredded low-moisture mozzarella cheese for best results.

If you’re looking to save money, grate your own block of cheese instead of buying pre-shredded!

The rest is up to you! Some people make their own sauce or dough from scratch, while others prefer store bought options. All that matters is that you have fun experimenting in the kitchen and enjoy what you create!

Here are the detailed instructions:

(1) The perfect pizza dough


  • 1 cup warm water
  • 1 tablespoon sugar
  • 1 package active dry yeast
  • 3 cups all-purpose flour
  • 1 teaspoon salt
  • Extra-virgin olive oil or vegetable oil for coating bowl and dough


1) In a large bowl, dissolve sugar in warm water. Add yeast and stir to combine. Let sit for 5-10 minutes until mixture is foamy.

2) Add flour and salt to yeast mixture. Stir until well combined.

3) Turn out dough onto a floured surface and knead for 8-10 minutes. If dough is sticky, add more flour until it’s no longer sticking to your hands.

4) Coat a large bowl with oil and place dough inside. Turn to coat evenly with oil. Cover bowl with a damp towel or plastic wrap and let sit in a warm place for 1-2 hours or until dough has doubled in size.

5) Preheat oven to 425 degrees F (220 degrees C).

6) Roll dough into desired shape and place on greased baking sheet or pizza stone. Top with sauce, cheese, and toppings of your choice.

7) Bake for 15-20 minutes or until crust is golden brown and cheese is bubbling.

8) Enjoy!

(2) The perfect pizza sauce


  • 1 28-ounce can crushed tomatoes
  • 1/4 cup chopped fresh parsley
  • 3 cloves garlic, minced
  • 1 teaspoon dried basil
  • 1/2 teaspoon dried oregano
  • 1/4 teaspoon salt


1) In a medium saucepan, combine all ingredients and stir to combine. Bring to a simmer and cook for 10-15 minutes or until desired thickness is reached.

2) Enjoy!

Maybe you don’t know the difference between pizza sauce and marinara sauce, don’t worry, we have it!

(3) The perfect pizza cheese


  • 8 ounces fresh mozzarella cheese, sliced
  • 4 ounces Parmesan cheese, grated
  • 2 tablespoons chopped fresh parsley


1) Preheat oven to 425 degrees F (220 degrees C).

2) On a lightly greased baking sheet, lay out cheese slices in a single layer.

3) Bake for 8-10 minutes or until cheese is slightly browned and bubbling.

4) Remove from oven and top with desired toppings.

5) Enjoy!

It’s clear that the best pizza is made at home, in your own oven.

Just think how great it would be to serve up a hot, steaming slice of homemade pizza in front of friends and family on movie night!

The only problem will be sharing – you might end up eating the whole thing by yourself!

If you’re looking for a great homemade pizza recipe, look no further! This easy tutorial will show you how to make a delicious pizza from scratch – and it’s way cheaper than buying one from a pizzeria.

Plus, you can customize it however you like with your favorite toppings.

Whether you’re a fan of pepperoni or pineapple, there’s a pizza out there for everyone. So get ready to roll up your sleeves and start cooking!

Final Words about Why Are Pizza Boxes Square

Pizza boxes come in all different shapes and sizes depending on where you go to get your favorite pie. Why are they square? 

Pizza boxes were originally square to accommodate the shape of old dough mixers.

Now, the pizza box is a symbol of nostalgia and convenience for many people who grew up eating this popular food item on weeknights or weekends.

There are many reasons why pizza boxes are square while most pizzas are round. One of those is that the shape is more efficient to stack and store as well as saves space in a delivery truck.

In addition, it makes it easier for customers to hold on to their slices without dropping them all over themselves or making a mess.

Finally, the box’s four sides make it easy for restaurants with limited storage options because they can be stored vertically rather than horizontally like a circle would have been able to do.

Now that you know a bit more about the history and reasoning behind pizza boxes square and cut pizzas, go ahead and try one out for yourself!

Whether you’re in the mood for a classic New York Style pizza or something a little different like Chicago Style, we guarantee you won’t be disappointed.

And don’t forget – pizza is best when shared with others, so gather up your friends and family and dig in!

We would love to hear what your favorite kind of pizza is and why! Don’t forget to SHARE this article if you enjoyed reading about some of the histories behind pizza!

Further Reading

14 Best Propane Pizza Ovens In 2022

Top 12 Best Wood Pizza Oven 2022

How Big Is 16 Inch Pizza?

How Big Is A 14 Inch Pizza?